Wireless communication system for pressure monitoring
First Claim
1. A system for measuring blood pressure in a patient comprising:
- a pressure transducer;
a first unit connected to said pressure transducer, said first unit generating and wirelessly transmitting a digitized signal representative of said blood pressure;
a second unit in electrical communication to any one of a plurality of different vital signs monitors, said second unit wirelessly receiving said digitized signal and processing said digitized signal so as to generate an analog signal suitable for use with any one of said plurality of different vital signs monitors.
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Accused Products
Abstract
In one embodiment, the present invention provides a wireless communication system for use with a blood pressure monitor system. The wireless communication system includes a portable unit that connects to a typical pressure transducer and a monitor interface unit that connects to a typical vital signs monitor. The portable unit obtains a pressure reading from the transducer by providing an excitation voltage to the transducer, then wirelessly transmitting the pressure data to the monitor interface unit. The monitor interface unit measures the excitation voltage supplied by the vital signs monitor to supply the pressure reading in a format recognizable by the vital signs monitor.
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Citations
51 Claims
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1. A system for measuring blood pressure in a patient comprising:
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a pressure transducer;
a first unit connected to said pressure transducer, said first unit generating and wirelessly transmitting a digitized signal representative of said blood pressure;
a second unit in electrical communication to any one of a plurality of different vital signs monitors, said second unit wirelessly receiving said digitized signal and processing said digitized signal so as to generate an analog signal suitable for use with any one of said plurality of different vital signs monitors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical system for transmitting pressure data to a monitor comprising:
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a pressure transducer providing an analog transducer signal;
a portable unit connected to said pressure transducer, said portable unit comprising;
a power source supplying an excitation voltage to said pressure transducer;
an analog-to-digital module converting said analog transducer signal to a digital transducer signal; and
a portable wireless transceiver transmitting said digital transducer signal; and
a monitor interface unit connectable to a monitor, said monitor interface unit comprising;
a monitor wireless transceiver receiving said digital transducer signal from said portable wireless transceiver; and
a transducer emulation module converting said digital transducer signal to an emulated analog transducer signal;
wherein said emulated analog transducer signal communicates a pressure value measured by said pressure transducer to said monitor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of monitoring blood pressure of a patient comprising:
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exciting a pressure transducer to generate an analog signal representative of a blood pressure of said patient;
converting said analog signal to a digital signal;
wirelessly broadcasting said digital signal from said patient;
receiving said digital signal at a monitor spaced from said patient;
processing said digital signal so as to generate an analog signal based on an excitation voltage format generated by said monitor and so as to generate a blood pressure signal compatible with said excitation voltage format;
communicating said blood pressure signal to said monitor. - View Dependent Claims (17, 18, 19, 20)
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21. A method of wirelessly transmitting pressure data comprising:
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providing a portable unit connected to a pressure transducer;
providing a first excitation signal to said pressure transducer;
receiving an output signal from said pressure transducer with said portable unit;
converting said output signal to a digital pressure value;
wirelessly transmitting said digital pressure value to. a monitor interface unit;
receiving a second excitation signal from a monitor;
creating an emulated pressure transducer signal based on said digital pressure value and said second excitation signal; and
supplying said emulated pressure transducer signal to said monitor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A pressure transducer telemetry system comprising:
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a first unit sized and shaped to move with a patient, including a power source configured to provide a first excitation voltage to a pressure transducer, an analog-to-digital circuit coupled to receive a transducer signal and produce a digital pressure value based on said transducer signal, and a first wireless transceiver coupled to transmit said digital pressure value; and
a second unit connectable to multiple types of monitors, said second unit including a second wireless transceiver configured to wirelessly receive said digital pressure value, and a pressure transducer emulation circuit coupled to receive said digital pressure value and produce an emulated pressure transducer signal based on said digital pressure value, said emulated pressure transducer signal being readable by said multiple types of monitors;
wherein said second unit communicates said emulated pressure transducer signal to at lease one of said multiple types of monitors to display a pressure measurement. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A pressure transducer telemetry system comprising:
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a portable pressure transducer unit movable with a patient;
said portable pressure transducer unit generating a digital pressure value based on a pressure sensed by a pressure transducer;
a first wireless transceiver disposed on said portable pressure transducer unit for transmitting said digital pressure value;
a stationary unit connectable to an interface unit;
a second wireless transceiver disposed on said stationary unit for receiving said digital pressure value;
an interface unit disposed between said stationary unit and a vital signs monitor;
a conversion routine disposed in one of said stationary unit and said interface unit to convert said digital pressure value into a signal readable by said vital signs monitor. - View Dependent Claims (42, 43, 44, 45)
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46. A pressure transducer telemetry system comprising:
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a portable pressure transducer unit movable with a patient;
said portable pressure transducer unit generating a digital pressure value based on a pressure sensed by a pressure transducer;
a first wireless transceiver disposed on said portable pressure transducer unit for transmitting said digital pressure value;
a stationary unit connectable to a vital signs monitor;
a second wireless transceiver disposed on said stationary unit for receiving said digital pressure value;
an interface circuit disposed within said stationary unit;
a communication protocol disposed in said interface circuit to communicate said digital pressure value to said vital signs monitor. - View Dependent Claims (47, 48, 49, 50, 51)
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Specification